Camera optical lens

ABSTRACT

The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens having a positive refractive power, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of plastic material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of glass material, the fifth lens is made of glass material, and the sixth lens is made of plastic material. The camera optical lens further satisfies specific conditions.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of Chinese Patent Application Ser. No. 201810203806.9 and Ser. No. 201810203699.X filed on Mar. 13, 2018, the entire content of which is incorporated herein by reference.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to a camera optical lens suitable for handheld devices such as smart phones and digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand for miniature camera lens is increasing day by day, but the photosensitive devices of general camera lens are no other than Charge Coupled Device (CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor), and as the progress of the semiconductor manufacturing technology makes the pixel size of the photosensitive devices shrink, coupled with the current development trend of electronic products being that their functions should be better and their shape should be thin and small, miniature camera lens with good imaging quality therefor has become a mainstream in the market. In order to obtain better imaging quality, the lens that is traditionally equipped in mobile phone cameras adopts a three-piece or four-piece lens structure. And, with the development of technology and the increase of the diverse demands of users, and under this circumstances that the pixel area of photosensitive devices is shrinking steadily and the requirement of the system for the imaging quality is improving constantly, the five-piece, six-piece and seven-piece lens structure gradually appear in lens design. There is an urgent need for ultra-thin wide-angle camera lenses which have good optical characteristics and the chromatic aberration of which is fully corrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood with reference to the following drawings. The components in the drawing are not necessarily drawn to scale, the emphasis instead being placed to upon clearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordance with a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lens shown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG. 1;

FIG. 4 presents a schematic diagram of the field curvature and distortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordance with a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lens shown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown in FIG. 5;

FIG. 8 presents the field curvature and distortion of the camera optical lens shown in FIG. 5:

FIG. 9 is a schematic diagram of a camera optical lens in accordance with a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lens shown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown in FIG. 9;

FIG. 12 presents the field curvature and distortion of the camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail with reference to several exemplary embodiments. To make the technical problems to be solved, technical solutions and beneficial effects of the present disclosure more apparent, the present disclosure is described in further detail together with the figure and the embodiments. It should be understood the specific embodiments described hereby is only to explain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera optical lens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of the present invention, the camera optical lens 10 comprises 6 lenses. Specifically, from the object side to the image side, the camera optical lens 10 comprises in sequence: an aperture S1, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6. Optical element like optical filter GF can be arranged between the sixth lens L6 and the image surface Si.

The first lens L1 is made of plastic material, the second lens L2 is made of plastic material, the third lens L3 is made of plastic material, the fourth lens L4 is made of glass material, the fifth lens L5 is made of glass material, and the sixth lens L6 is made of plastic material.

The second lens L2 has a positive refractive power, and the third lens L3 has a positive refractive power.

Here, the focal length of the whole camera optical lens 10 is defined as f, the focal length of the first lens is defined as f1. The camera optical lens further satisfies the following condition: 0.5≤f1/f≤10. Condition 0.5≤f1/f≤10 fixes the positive refractive power of the first lens L1. If the lower limit of the set value is exceeded, although it benefits the ultra-thin development of lenses, but the positive refractive power of the first lens L1 will be too strong, problem like aberration is difficult to be corrected, and it is also unfavorable for wide-angle development of lens. On the contrary, if the upper limit of the set value is exceeded, the positive refractive power of the first lens L1 becomes too weak, it is then difficult to develop ultra-thin lenses. Preferably, the following condition shall be satisfied, 0.923≤f1/f≤9.061.

The refractive power of the fourth lens L4 is defined as n4. Here the following condition should be satisfied: 1.7≤n4≤2.2. This condition fixes the refractive power of the fourth lens L4, and refractive power within this range benefits the ultra-thin development of lenses, and it also benefits the correction of aberration. Preferably, the following condition shall be satisfied, 1.703≤n4≤2.2.

The refractive power of the fifth lens L5 is defined as n5. Here the following condition should be satisfied: 1.7≤n5≤2.2. This condition fixes the refractive power of the fifth lens L5, and refractive power within this range benefits the ultra-thin development of lenses, and it also benefits the correction of aberration. Preferably, the following condition shall be satisfied, 1.701≤n5≤2.148.

When the focal length of the camera optical lens 10 of the present invention, the focal length of each lens, the refractive power of the related lens, and the total optical length, the thickness on-axis and the curvature radius of the camera optical lens satisfy the above conditions, the camera optical lens 10 has the advantage of high performance and satisfies the design requirement of low TTL.

In this embodiment, the first lens L1 has a positive refractive power with a convex object side surface relative to the proximal axis and a concave image side surface relative to the proximal axis.

The curvature radius of the object side surface of the first lens L1 is defined as R1, the curvature radius of the image side surface of the first lens L1 is defined as R2. The camera optical lens 10 further satisfies the following condition: −111.00≤(R1+R2)/(R1−R2)≤−2.29, which fixes the shape of the first lens L1. When the value is beyond this range, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the condition −69.37≤(R1+R2)/(R1−R2)≤−2.87 shall be satisfied.

The thickness on-axis of the first lens L1 is defined as d1. The following condition: 0.13≤d1≤0.69 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.21≤d1≤0.55 shall be satisfied.

In this embodiment, the second lens L2 has a convex object side surface to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the second lens L2 is f2. The following condition should be satisfied: 0.62≤f2/f≤6.17. When the condition is satisfied, the positive refractive power of the second lens L2 is controlled within reasonable scope, the spherical aberration caused by the first lens L1 which has positive refractive power and the field curvature of the system then can be reasonably and effectively balanced. Preferably, the condition 1.00≤f2/f≤4.94 should be satisfied.

The curvature radius of the object side surface of the second lens L2 is defined as R3, the curvature radius of the image side surface of the second lens L2 is defined as R4. The following condition should be satisfied: −5.11≤(R3+R4)/(R3−R4)≤−0.19, which fixes the shape of the second lens L2 and can effectively correct aberration of the camera optical lens. Preferably, the following condition shall be satisfied, −3.19≤(R3+R4)/(R3−R4)≤−0.23.

The thickness on-axis of the second lens L2 is defined as d3. The following condition: 0.18≤d3≤0.97 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.295d3≤0.78 shall be satisfied.

In this embodiment, the third lens L3 has a convex object side surface and a concave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the third lens L3 is f3. The following condition should be satisfied: 60≤f3, 16≤f3/f. When the condition is satisfied, It is beneficial for the system to obtain a good balance of field curvature and further enhance the imaging quality.

The thickness on-axis of the third lens L3 is defined as d5. The following condition: 0.12≤d5≤0.60 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.19≤d5≤0.48 shall be satisfied.

In this embodiment, the fourth lens L4 has a positive refractive power with a concave object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fourth lens L4 is f4. The following condition should be satisfied: 0.36≤f4/f≤1.42, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition 0.58≤f4/f≤1.61 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 is defined as R7, the curvature radius of the image side surface of the fourth lens L4 is defined as R8. The following condition should be satisfied: 1.47≤(R7+R8)/(R7−R8)≤5.46, by which, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, 2.36≤(R7+R8)/(R7−R8)≤4.37.

The thickness on-axis of the fourth lens L4 is defined as d7. The following condition: 0.30≤d7≤1.00 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.485d7≤0.80 shall be satisfied.

In this embodiment, the fifth lens L5 has a negative refractive power with a concave object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fifth lens L5 is f5. The following condition should be satisfied: −1.90≤f5/f≤−0.39, which can effectively smooth the light angles of the camera and reduce the tolerance sensitivity. Preferably, the condition −1.19≤f5/f≤−0.49 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 is defined as R9, the curvature radius of the image side surface of the fifth lens L5 is defined as R10. The following condition should be satisfied: −5.46≤(R9+R10)/(R9−R10)≤−1.31, by which, the shape of the fifth lens L5 is fixed, further, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −3.41≤(R9+R10)/(R9−R10)≤−1.63.

The thickness on-axis of the fifth lens L5 is defined as d9. The following condition: 0.12≤d9≤0.66 should be satisfied. When the condition is to satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.20≤d9≤0.53 shall be satisfied.

In this embodiment, the sixth lens L6 has a positive refractive power with a convex object side surface and a concave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the sixth lens L6 is f6. The following condition should be satisfied: 1.12≤f6/f≤6.46, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition 1.79≤f6/f≤5.17 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 is defined as R11, the curvature radius of the image side surface of the sixth lens L6 is defined as R12. The following condition should be satisfied: −49.17≤(R11+R12)/(R11−R12)≤478.56, by which, the shape of the sixth lens L6 is fixed, further, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −30.73≤(R11+R12)/(R11−R12)≤382.84.

The thickness on-axis of the sixth lens L6 is defined as d11. The following condition: 0.47≤d11≤1.52 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.75≤d11≤1.21 shall be satisfied.

The focal length of the whole camera optical lens 10 is f, the combined focal length of the first lens L1 and the second lens L2 is f12. The following condition should be satisfied: 0.53≤f12/f≤1.71, which can effectively avoid the aberration and field curvature of the camera optical lens, and can suppress the rear focal length for realizing the ultra-thin lens. Preferably, the condition 0.85≤f12/f≤1.37 should be satisfied.

In this embodiment, the total optical length TTL of the camera optical lens 10 is less than or equal to 6.13 mm, it is beneficial for the realization of ultra-thin lenses. Preferably, the total optical length TTL of the camera optical lens 10 is less than or equal to 5.85 mm.

In this embodiment, the aperture F number of the camera optical lens 10 is less than or equal to 2.06. A large aperture has better imaging performance. Preferably, the aperture F number of the camera optical lens 10 is less than or equal to 2.02.

With such design, the total optical length TTL of the whole camera optical lens 10 can be made as short as possible, thus the miniaturization characteristics can be maintained.

In the following, an example will be used to describe the camera optical lens 10 of the present invention. The symbols recorded in each example are as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surface of the first lens L1 to the image surface).

Preferably, inflexion points and/or arrest points can also be arranged on the object side surface and/or image side surface of the lens, so that the demand for high quality imaging can be satisfied, the description below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the first embodiment of the present invention is shown in the following, the unit of the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the first embodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd vd S1 ∞ d0= −0.307 R1 1.844 d1= 0.460 nd1 1.6963 v1 56.30 R2 2.905 d2= 0.282 R3 4.721 d3= 0.385 nd2 1.5140 v2 56.80 R4 10.799 d4= 0.205 R5 −1510.801 d5= 0.292 nd3 1.6659 v3 20.50 R6 −1481.960 d6= 0.200 R7 −3.108 d7= 0.635 nd4 1.7057 v4 52.15 R8 −1.582 d8= 0.077 R9 −1.447 d9= 0.272 nd5 1.7009 v5 25.60 R10 −3.736 d10= 0.266 R11 1.650 d11= 1.003 nd6 1.5270 v6 32.00 R12 1.640 d12= 0.614 R13 ∞ d13= 0.210 ndg 1.5168 vg 64.17 R14 ∞ d14= 0.600

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvature radius in case of lens;

R1: The curvature radius of the object side surface of the first lens L1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lens L2;

R4: The curvature radius of the image side surface of the second lens L2;

R5: The curvature radius of the object side surface of the third lens L3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lens L4:

R8: The curvature radius of the image side surface of the fourth lens L4;

R9: The curvature radius of the object side surface of the fifth lens L5;

R10: The curvature radius of the image side surface of the fifth lens L5;

R11: The curvature radius of the object side surface of the sixth lens L6;

R12: The curvature radius of the image side surface of the sixth lens L6;

R13: The curvature radius of the object side surface of the optical filter GF;

R14: The curvature radius of the image side surface of the optical filter GF;

d: The thickness on-axis of the lens and the distance on-axis between the lens;

d0: The distance on-axis from aperture S1 to the object side surface of the first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lens L1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lens L2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lens L4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lens L6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the image surface of the optical filter GF;

nd: The refractive power of the d line;

nd1: The refractive power of the d line of the first lens L1;

nd2: The refractive power of the d line of the second lens L2;

nd3: The refractive power of the d line of the third lens L3;

nd4: The refractive power of the d line of the fourth lens L4;

nd5: The refractive power of the d line of the fifth lens L5;

nd6: The refractive power of the d line of the sixth lens L6;

ndg: The refractive power of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1  5.8085E−01 −0.006613691 0.007615205 −0.012099143 0.014402326 −0.010108995 0.002943087 −0.000251992 R2  1.3664E+00 −0.001170228 −0.002240348 0.002389474 −0.000882456 −0.007375485 0.007722114 −0.00454768 R3 −5.1623E+01 0.011702661 −0.050505776 −0.002665559 0.035316638 −0.064882471 0.031784917 −0.003944929 R4 −2.1480E+01 −0.065467748 −0.036230764 −0.03350369 0.055575933 −0.059273757 0.026874681 −0.001262825 R5 −1.1284E+13 −0.077938732 −0.042472434 −0.044052023 −0.00432379 0.022466932 0.000751206 −0.002698119 R6 −4.4613E+07 −0.037834807 0.053785748 −0.14010488 0.14630473 −0.088050003 0.020039873 0.001996655 R7  4.4290E+00 −0.021313454 0.027704776 0.062841922 −0.058852298 −0.010390531 0.023403554 −0.004221348 R8 −2.8144E−01 0.011442318 −0.035222004 0.05377326 −0.037904352 0.015822308 −0.002829882 0.000305439 R9 −4.1784E+00 −0.002234494 −0.18481285 0.37005569 −0.4362125 0.30337847 −0.11072783 0.016039287 R10 −1.1821E+00 −0.1614758 0.24403475 −0.25558075 0.17076962 −0.064002235 1.23E−02 −9.55E−04 R11 −1.1012E+01 −0.1614758 0.030919637 −0.001952991 −0.000261477  9.49E−06 6.65E−06 −5.78E−07 R12 −4.0640E+00 −0.11505466 0.01654066 −0.00291448 0.000302428 −1.68E−05 4.58E−07 −7.81E−09

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 are aspheric surface indexes.

IH: Image height y=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰ +A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses the aspheric surfaces shown in the above condition (1). However, the present invention is not limited to the aspherical polynomials form shown in the condition (1).

Table 3 and table 4 show the inflexion points and the arrest point design data of the camera optical lens 10 lens in embodiment 1 of the present invention. In which, P1R1 and P1R2 represent respectively the object side surface and image side surface of the first lens L1, P2R1 and P2R2 represent respectively the object side surface and image side surface of the second lens L2, P3R1 and P3R2 represent respectively the object side surface and image side surface of the third lens L3, P4R1 and P4R2 represent respectively the object side surface and image side surface of the fourth lens L4, P5R1 and P5R2 represent respectively the object side surface and image side surface of the fifth lens L5, P6R1 and P6R2 represent respectively the object side surface and image side surface of the sixth lens L6. The data in the column named “inflexion point position” are the vertical distances from the inflexion points arranged on each lens surface to the optic axis of the camera optical lens 10. The data in the column named “arrest point position” are the vertical distances from the arrest points arranged on each lens surface to the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position 3 P1R1 0 P1R2 1 0.985 P2R1 1 0.565 P2R2 2 0.325 1.145 P3R1 0 P3R2 1 1.145 P4R1 2 1.105 1.275 P4R2 1 1.185 P5R1 1 1.425 P5R2 2 1.125 1.545 P6R1 3 0.465 1.535 2.205 P6R2 1 0.755

TABLE 4 Arrest point number Arrest point position 1 P1R1 0 P1R2 0 P2R1 1 0.845 P2R2 1 0.525 P3R1 0 P3R2 1 1.255 P4R1 0 P4R2 0 P5R1 0 P5R2 0 P6R1 1 0.975 P6R2 1 1.795

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 10 in the first embodiment. FIG. 4 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 10 in the first embodiment, the field curvature S in FIG. 4 is a field curvature in the sagittal direction, T is a field curvature in the meridian direction.

Table 13 shows the various values of the embodiments 1, 2, 3, and the values corresponding with the parameters which are already specified in the conditions.

As shown in Table 13, the first embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.0754 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 80.49°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 5 and table 6 show the design data of the camera optical lens in embodiment 2 of the present invention.

TABLE 5 R d nd vd S1 ∞ d0= −0.246 R1 1.782 d1= 0.434 nd1 1.7016 v1 56.30 R2 3.245 d2= 0.295 R3 12.303 d3= 0.358 nd2 1.5140 v2 56.80 R4 −21.886 d4= 0.117 R5 −1662.610 d5= 0.398 nd3 1.7654 v3 20.50 R6 −45.123 d6= 0.215 R7 −3.129 d7= 0.669 nd4 2.2000 v4 48.35 R8 −1.780 d8= 0.101 R9 −1.564 d9= 0.250 nd5 2.0964 v5 25.60 R10 −4.816 d10= 0.303 R11 1.641 d11= 1.011 nd6 1.6507 v6 25.72 R12 1.780361 d12= 0.504 R13 ∞ d13= 0.210 ndg 1.5168 vg 64.17 R14 ∞ d14= 0.493

Table 6 shows the aspherical surface data of each lens of the camera optical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1  6.0618E−01 −0.003981791 0.006264354 −0.012351797 0.013557025 −0.011608185 0.001491913 −0.000414627 R2  1.5277E+00 0.007009519 −0.003715036 −0.004335198 −0.002744787 −0.007525764 0.005061572 −0.011959058 R3 −5.3234E+02 −0.009413682 −0.053652352 −0.006279656 0.030424329 −0.071440996 0.027439506 −0.005115334 R4  1.6208E+02 −0.082153491 −0.04286048 −0.033763359 0.059320811 −0.056302886 0.027664834 −0.00324144 R5 −1.2853E+22 −0.06744105 −0.047675153 −0.037173969 0.000598647 0.018973149 −0.004596947 −0.004400528 R6 −4.5215E+04 −0.038771937 0.066442381 −0.13999673 0.14244149 −0.090055626 0.020387625 0.003410448 R7  4.3578E+00 −0.021910793 0.029016613 0.062532243 −0.058125541 −0.010060427 0.023291018 −0.004553235 R8 −2.7172E−01 0.011123939 −0.034358246 0.054176828 −0.039604005 0.015024455 −0.002993571 0.000326891 R9 −2.4822E+00 0.027156064 −0.19231226 0.36647073 −0.4357759 0.30360844 −0.11070406 0.01601262 R10  2.5652E−01 −0.16375213 0.24327403 −0.25581727 0.17071328 −0.063998953 1.23E−02 −9.53E−04 R11 −9.7767E+00 −0.16375213 0.031508393 −0.00194429 −0.000263542  8.93E−06 6.61E−06 −5.48E−07 R12 −4.5709E+00 −0.12312746 0.017655595 −0.002993932 0.000297932 −1.67E−05 4.80E−07 −6.53E−09

Table 7 and table 8 show the inflexion points and the arrest point design data of the camera optical lens 20 lens in embodiment 2 of the present invention.

TABLE 7 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position 3 P1R1 0 P1R2 1 0.835 P2R1 1 0.375 P2R2 0 P3R1 0 P3R2 1 1.115 P4R1 2 1.105 1.295 P4R2 1 1.375 P5R1 1 1.435 P5R2 4 1.155 1.555 1.615 P6R1 3 0.465 1.635 2.285 P6R2 1 0.715

TABLE 8 Arrest point number Arrest point position 1 P1R1 0 P1R2 1 1.025 P2R1 1 0.595 P2R2 0 P3R1 0 P3R2 1 1.215 P4R1 0 P4R2 0 P5R1 0 P5R2 0 P6R1 1 0.955 P6R2 1 1.645

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 20 in the second embodiment. FIG. 8 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 20 in the second embodiment.

As shown in Table 13, the second embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 1.868 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 86.46°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 9 and table 10 show the design data of the camera optical lens in embodiment 3 of the present invention.

TABLE 9 R d nd vd S1 ∞ d0= −0.225 R1 1.974 d1= 0.260 nd1 1.6927 v1 56.30 R2 2.046 d2= 0.086 R3 2.491 d3= 0.647 nd2 1.5140 v2 56.80 R4 68.315 d4= 0.233 R5 −458.452 d5= 0.238 nd3 1.4340 v3 23.85 R6 −458.516 46= 0.271 R7 −3.169 d7= 0.597 nd4 1.7057 v4 70.00 R8 −1.564 d8= 0.062 R9 −1.288 d9= 0.441 nd5 1.7199 v5 25.60 R10 −2.776 d10= 0.219 R11 1.475 d11= 0.938 nd6 1.5342 v6 39.90 R12 1.366243 d12= 0.690 R13 ∞ d13= 0.210 ndg 1.5168 vg 64.17 R14 ∞ d14= 0.676

Table 10 shows the aspherical surface data of each lens of the camera optical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1  2.5892E−01 −0.014184731 0.000476607 −0.015238473 0.013029836 −0.010238034 0.002972029 −0.000758235 R2  5.4269E−02 −0.018001796 −0.004429536 −0.001061168 −0.002916949 −0.008193627 0.003614572 0.001753579 R3 −8.6579E+00 0.051560187 −0.032890426 −0.004162935 0.041280003 −0.064032843 0.031093976 −0.00233223 R4  3.2570E+03 −0.04418719 −0.029017807 −0.028866155 0.056394216 −0.059890037 0.026106419 −0.002809718 R5 −8.0774E+08 −0.08543484 −0.039086325 −0.040860067 −0.000776997 0.025265177 0.00227856 −0.001958529 R6 −4.7599E+07 −0.034825034 0.05443541 −0.13920328 0.14916088 −0.087923974 0.019678811 0.00172514 R7  4.3304E+00 −0.024397324 0.026010126 0.062236078 −0.058193035 −0.010896745 0.022672584 −0.004581383 R8 −2.8757E−01 0.019178934 −0.032458054 0.054596133 −0.03866209 0.015356021 −0.002869315 0.000337477 R9 −3.5041E+00 0.007066018 −0.18187217 0.3710244 −0.43580953 0.30327782 −0.1108603 0.015958319 R10 −3.8207E+00 −0.15507798 0.24436425 −0.25569498 0.17069799 −0.063894458 1.22E−02 −9.41E−04 R11 −8.6495E+00 −0.15507798 0.028671601 −0.002104981 −0.000242021  1.33E−05 6.79E−06 −6.63E−07 R12 −3.7688E+00 −0.10239695 0.016660247 −0.002890158 0.000300594 −1.71E−05 4.32E−07 −4.67E−09

Table 11 and table 12 show the inflexion points and the arrest point design data of the camera optical lens 30 lens in embodiment 3 of the present invention.

TABLE 11 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position 3 P1R1 1 1.025 P1R2 0 P2R1 2 0.905 1.045 P2R2 2 0.165 1.175 P3R1 1 1.075 P3R2 1 1.135 P4R1 1 1.195 P4R2 1 1.205 P5R1 0 P5R2 2 1.065 1.705 P6R1 3 0.515 1.575 1.995 P6R2 1 0.775

TABLE 12 Arrest point Arrest Arrest Arrest number point position 1 point position 2 point position 3 P1R1 0 P1R1 0 P1R2 0 P1R2 0 P2R1 0 P2R1 0 P2R2 1 0.285 P2R2 1 P3R1 0 P3R1 0 P3R2 1 1.245 P3R2 1 P4R1 0 P4R1 0 P4R2 0 P4R2 0 P5R1 0 P5R1 0 P5R2 0 P5R2 0 P6R1 1 1.145 P6R1 1 P6R2 1 2.035 P6R2 1

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 30 in the third embodiment. FIG. 12 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 30 in the third embodiment.

As shown in Table 13, the third embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.0062 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 82.39°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

TABLE 13 Embodiment 1 Embodiment 2 Embodiment 3 f 4.149 3.736 4.012 f1 6.154 5.023 32.588 f2 15.975 15.377 5.014 f3 116110.434 60.595 65495205.1 f4 3.896 2.708 3.793 f5 −3.545 −2.200 −3.808 f6 15.287 8.349 17.276 f12 4.592 3.958 4.567 (R1 + R2)/(R1 − R2) −4.475 −3.438 −55.498 (R3 + R4)/(R3 − R4) −2.553 −0.280 −1.076 (R5 + R6)/(R5 − R6) 103.765 1.056 −14198.676 (R7 + R8)/(R7 − R8) 3.074 3.639 2.949 (R9 + R10)/ −2.265 −1.962 −2.730 (R9 − R10) (R11 + R12)/ 319.037 −24.584 26.222 (R11 − R12) f1/f 1.483 1.345 8.122 f2/f 3.850 4.116 1.249 f3/f 27984.642 16.219 16322957.7 f4/f 0.939 0.725 0.945 f5/f −0.854 −0.589 −0.949 f6/f 3.684 2.235 4.305 f12/f 1.107 1.059 1.138 d1 0.460 0.434 0.260 d3 0.385 0.358 0.647 d5 0.292 0.398 0.238 d7 0.635 0.669 0.597 d9 0.272 0.250 0.441 d11 1.003 1.011 0.938 Fno 2.000 2.000 2.000 TTL 5.501 5.358 5.568 d1/TTL 0.084 0.081 0.047 d3/TTL 0.070 0.067 0.116 d5/TTL 0.053 0.074 0.043 d7/TTL 0.115 0.125 0.107 d9/TTL 0.049 0.047 0.079 d11/TTL 0.182 0.189 0.168 n1 1.6963 1.7016 1.6927 n2 1.5140 1.5140 1.5140 n3 1.6659 1.7654 1.4340 n4 1.7057 2.2000 1.7057 n5 1.7009 2.0964 1.7199 n6 1.5270 1.6507 1.5342 v1 56.3000 56.3000 56.3000 v2 56.8000 56.8000 56.8000 v3 20.4996 20.4995 23.8539 v4 52.1506 48.3487 70.0007 v5 25.6000 25.6000 25.6000 v6 32.0015 25.7215 39.9021

It is to be understood, however, that even though numerous characteristics and advantages of the present exemplary embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms where the appended claims are expressed. 

What is claimed is:
 1. A camera optical lens comprising, from an object side to an image side in sequence: a first lens, a second lens having a positive refractive power, a third lens having a positive refractive power, a fourth, a fifth lens, and a sixth lens; wherein the camera optical lens further satisfies the following conditions: 0.5≤f1/f≤10; 1.7≤n4≤2.2; 1.7≤n5≤2.2; −111.00≤(R1+R2)/(R1−R2)≤−2.29; where f: the focal length of the camera optical lens; f1: the focal length of the first lens; R1: the curvature radius of object side surface of the first lens; R2: the curvature radius of image side surface of the first lens; n4: the refractive power of the fourth lens; n5: the refractive power of the fifth lens.
 2. The camera optical lens as described in claim 1, wherein the first lens is made of plastic material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of glass material, the fifth lens is made of glass material, the sixth lens is made of plastic material.
 3. The camera optical lens as described in claim 1 further satisfying the following conditions: 0.923≤f1/f≤9.061; 1.703≤n4≤2.2; 1.701≤n5≤2.148.
 4. The camera optical lens as described in claim 1, wherein first lens has a positive refractive power with a convex object side surface and a concave image side surface to the proximal axis; the camera optical lens further satisfies the following conditions: 0.13≤d1≤0.69; where d1: the thickness on-axis of the first lens.
 5. The camera optical lens as described in claim 4 further satisfying the following conditions: −69.37≤(R1+R2)/(R1−R2)≤−2.87; 0.21≤d1≤0.55.
 6. The camera optical lens as described in claim 1, wherein the second lens has a convex object side surface; the camera optical lens further satisfies the following conditions: 0.62≤f2/f≤6.17; −5.11≤(R3+R4)/(R3−R4)≤−0.19; 0.18≤d3≤0.97; where f: the focal length of the camera optical lens; f2: the focal length of the second lens; R3: the curvature radius of the object side surface of the second lens; R4: the curvature radius of the image side surface of the second lens; d3: the thickness on-axis of the second lens.
 7. The camera optical lens as described in claim 6 further satisfying the following conditions: 1.00≤f2/f≤4.94; −3.19≤(R3+R4)/(R3−R4)≤−0.23; 0.29≤d3≤0.78.
 8. The camera optical lens as described in claim 1, wherein the third lens has a convex object side surface and a concave image side surface to the proximal axis; the camera optical lens further satisfies the following conditions: 60≤f3; 16≤f3/f; 0.12≤d5≤0.60; where f: the focal length of the camera optical lens; f3: the focal length of the third lens; d5: the thickness on-axis of the third lens.
 9. The camera optical lens as described in claim 8 further satisfying the following conditions: 0.19≤d5≤0.48.
 10. The camera optical lens as described in claim 1, wherein the fourth lens has a positive refractive power with a concave object side surface and a convex image side surface to the proximal axis; the camera optical lens further satisfies the following conditions: 0.36≤f4/f≤1.42; 1.47≤(R7+R8)/(R7−R8)≤5.46; 0.30≤d7≤1.00; where f: the focal length of the camera optical lens; f4: the focal length of the fourth lens; R7: the curvature radius of the object side surface of the fourth lens; R8: the curvature radius of the image side surface of the fourth lens; d7: the thickness on-axis of the fourth lens.
 11. The camera optical lens as described in claim 10 further satisfying the following conditions: 0.58≤f4/f≤1.13; 2.36≤(R7+R8)/(R7−R8)≤4.37; 0.48≤d7≤0.80.
 12. The camera optical lens as described in claim 1, wherein the fifth lens has a negative refractive power with a concave object side surface and a convex image side surface to the proximal axis; the camera optical lens further satisfies the following conditions: −1.90≤f5/f≤−0.39; −5.46≤(R9+R10)/(R9−R10)≤−1.31; 0.12≤d9≤0.66; where f: the focal length of the camera optical lens; f5: the focal length of the fifth lens; R9: the curvature radius of the object side surface of the fifth lens; R10: the curvature radius of the image side surface of the fifth lens; d9: the thickness on-axis of the fifth lens.
 13. The camera optical lens as described in claim 12 further satisfying the following conditions: −1.19≤f5/f≤−0.49; −3.41≤(R9+R10)/(R9−R10)≤−1.63; 0.20≤d9≤0.53.
 14. The camera optical lens as described in claim 1, wherein the sixth lens has a positive refractive power with a convex object side surface and a concave image side surface to the proximal axis; the camera optical lens further satisfies the following conditions: 1.12≤f6/f≤6.46; −49.17≤(R11+R12)/(R11−R12)≤478.56; 0.47≤d11≤1.52; where f: the focal length of the camera optical lens; f6: the focal length of the sixth lens; R11: the curvature radius of the object side surface of the sixth lens; R12: the curvature radius of the image side surface of the sixth lens; d11: the thickness on-axis of the sixth lens.
 15. The camera optical lens as described in claim 14 further satisfying the following conditions: 1.79≤f6/f≤5.17; −30.73≤(R11+R12)/(R11−R12)≤382.84; 0.75≤d11≤1.21.
 16. The camera optical lens as described in claim 1 further satisfying the following condition: 0.53≤f12/f≤1.71; where f12: the combined focal length of the first lens and the second lens; f: the focal length of the camera optical lens.
 17. The camera optical lens as described in claim 16 further satisfying the following condition: 0.85≤f12/f≤1.37.
 18. The camera optical lens as described in claim 1, wherein the total optical length TTL of the camera optical lens is less than or equal to 6.13 mm.
 19. The camera optical lens as described in claim 18, wherein the total optical length TTL of the camera optical lens is less than or equal to 5.85 mm.
 20. The camera optical lens as described in claim 1, wherein the aperture F number of the camera optical lens is less than or equal to 2.06.
 21. The camera optical lens as described in claim 20, wherein the aperture F number of the camera optical lens is less than or equal to 2.02. 